About what share of Americans will develop some form of skin cancer during their lifetime?
Answerabout 1 in 5
Skin cancer is the most commonly diagnosed cancer in the United States.
Source: American Academy of Dermatology aad.org
Health · Facts & sources
Skin facts & stats
4 sourced facts about human skin, each with the context behind the number. 4 more are in today's round and appear here after it closes.
The basics
Going deeper
About how many new melanoma cases were estimated in the U.S. for 2026?
Answerabout 234,680 cases
That estimate splits into roughly 122,680 noninvasive and 112,000 invasive melanoma cases.
Source: American Academy of Dermatology aad.org
Expert level
About how many individual cells make up the skin of an adult male?
Answerabout 610 billion cells
That full-body skin tissue, including hair follicles, weighs roughly 847 grams in total.
Source: Hatton et al., 2023 (via Wikipedia) (2023) en.wikipedia.org
Roughly what share of white Americans will develop melanoma in their lifetime, compared to Black Americans?
Answerabout 1 in 33 vs. about 1 in 1,000
The stark gap reflects how much protection melanin provides against UV-related skin cancers.
Source: American Academy of Dermatology aad.org
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